Oh ignorant, self-seeking cupidity which spurs us so in the short mortal life and steeps us so through all eternity!

Dante Alighieri, The Divine Comedy

Modern science has been a voyage into the unknown, with a lesson in humility waiting at every stop. Many passengers would rather have stayed home.

Carl Sagan

Wisdom for our time

Quando omni flunkus moritati.

As related by Red Green of Possum Lodge 

Evolution vs Capitalism

Evolution is mindless, economics is mindful,

collectively and individually. 

Did you ever know a rich person that didn't want to be more rich?

Said to Angelina

The universe is a giant quantum-mechanical relativistic Rube-Goldberg patchwork construct, knit by interactions of its constituents, changed and ever changing through these interactions.

Vandana Singh, Ambiguity Machines and other stories

To err is human, but to really foul things up you need a computer.

Paul R. Ehrlich